NWS Bulletins for NPAC - MKWC
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Hawaiian Islands Synoptic Discussion and Guidance
269
FXHW60 PHFO 100138
AFDHFO
Area Forecast Discussion
National Weather Service Honolulu HI
338 PM HST Sun Jun 9 2024
.SYNOPSIS...
Breezy trade winds will continue this week with high pressure
slowly tracking eastward. Scant trade showers will favor windward
shores and slopes.
&&
.DISCUSSION...
High pressure will maintain north to northeast of the state
through the week keeping breezy trade winds in the forecast.
Ridging aloft will produce dry and stable conditions to go along
with the breezes. 00Z soundings showed strong inversions near
5000 feet, which will limit shower development. Visible satellite
shows scattered windward clouds, and broken cloud cover over the
Kona coast of the Big Island. Clouds on the Big Island should
dissipate after sunset as land breezes set in. Otherwise, expect a
similar weather pattern continuing through the next several days
with a few windward clouds and leeward sun.
The high is expected to slowly track eastward through the week
with a low pressure system shifting the high a little bit
southward by next weekend. Weather pattern across Hawaii will
change very little with minor fluctuations in wind speeds, and
mostly dry and stable conditions continuing. A few windward
clouds and showers will occur at times, but no significant rain
amounts are expected through the week.
&&
.AVIATION...
Breezy trades will increase slightly through Monday. With high
pressure and dry air in place over the region, shower activity
will be limited. A strong inversion will keep any ceilings fairly
low, allowing for periods of MVFR conditions. Otherwise, VFR will
prevail. No AIRMETs are currently in effect, nor expected through
tonight, unless widespread low ceilings develop.
&&
.MARINE...
Fresh to locally strong trades will continue through much of the
week as the surface ridge strengthens to the north. Guidance
suggests a potential weakness forming in the ridge northwest of
the state next weekend, which could lead to moderate to fresh
east-southeast trades.
Surf along south-facing shores will remain up through the week
due to an active pattern within our swell window near New Zealand.
Overlapping, long-period, south to south-southwest swells are
therefore expected. Guidance shows this swell peaking late
tonight through Monday. A downward trend is anticipated Tuesday
through midweek, with mainly a mix of the fading south- southwest
swell and a small, medium- period southeast swell. A fresh long-
period south swell is expected to arrive Thursday night into
Friday, then peak late Friday into Saturday.
Surf along north-facing shores will remain up slightly through
the first half of the week as small north to north-northwest
pulses move through. The next north pulse should fill in late
Monday, with a small north-northwest swell arriving Tuesday into
midweek. A return to summertime/flat conditions is likely later
this week through next weekend.
Surf along east-facing shores should trend up later this week as
the trades become established locally and upstream across the
eastern Pacific.
&&
.HFO WATCHES/WARNINGS/ADVISORIES...
High Surf Advisory until 6 PM HST Monday for south facing shores
of Niihau, Kauai, Oahu, Molokai, Maui, Kahoolawe and Big Island.
Small Craft Advisory until 6 AM HST Tuesday for Maalaea Bay-
Pailolo Channel-Alenuihaha Channel-Big Island Leeward Waters-Big
Island Southeast Waters.
&&
$$
DISCUSSION...Foster
AVIATION...TS
MARINE...JVC
Bulletins, Forecasts and Observations are courtesy of Honolulu National Weather Service Forecast Office
Narrow the Menu List
Select Time Limit: 12 hours | 24 hours | 48 hours | 72 hours | No time limit
Select Product Type: All | Routine Bulletins/FCSTS | Warnings/Watches/Advisories | HAWN Weather | Tropical | Marine | Aviation | Daily Obs | Special
Hawaiian Islands Synoptic Discussion and Guidance
269
FXHW60 PHFO 100138
AFDHFO
Area Forecast Discussion
National Weather Service Honolulu HI
338 PM HST Sun Jun 9 2024
.SYNOPSIS...
Breezy trade winds will continue this week with high pressure
slowly tracking eastward. Scant trade showers will favor windward
shores and slopes.
&&
.DISCUSSION...
High pressure will maintain north to northeast of the state
through the week keeping breezy trade winds in the forecast.
Ridging aloft will produce dry and stable conditions to go along
with the breezes. 00Z soundings showed strong inversions near
5000 feet, which will limit shower development. Visible satellite
shows scattered windward clouds, and broken cloud cover over the
Kona coast of the Big Island. Clouds on the Big Island should
dissipate after sunset as land breezes set in. Otherwise, expect a
similar weather pattern continuing through the next several days
with a few windward clouds and leeward sun.
The high is expected to slowly track eastward through the week
with a low pressure system shifting the high a little bit
southward by next weekend. Weather pattern across Hawaii will
change very little with minor fluctuations in wind speeds, and
mostly dry and stable conditions continuing. A few windward
clouds and showers will occur at times, but no significant rain
amounts are expected through the week.
&&
.AVIATION...
Breezy trades will increase slightly through Monday. With high
pressure and dry air in place over the region, shower activity
will be limited. A strong inversion will keep any ceilings fairly
low, allowing for periods of MVFR conditions. Otherwise, VFR will
prevail. No AIRMETs are currently in effect, nor expected through
tonight, unless widespread low ceilings develop.
&&
.MARINE...
Fresh to locally strong trades will continue through much of the
week as the surface ridge strengthens to the north. Guidance
suggests a potential weakness forming in the ridge northwest of
the state next weekend, which could lead to moderate to fresh
east-southeast trades.
Surf along south-facing shores will remain up through the week
due to an active pattern within our swell window near New Zealand.
Overlapping, long-period, south to south-southwest swells are
therefore expected. Guidance shows this swell peaking late
tonight through Monday. A downward trend is anticipated Tuesday
through midweek, with mainly a mix of the fading south- southwest
swell and a small, medium- period southeast swell. A fresh long-
period south swell is expected to arrive Thursday night into
Friday, then peak late Friday into Saturday.
Surf along north-facing shores will remain up slightly through
the first half of the week as small north to north-northwest
pulses move through. The next north pulse should fill in late
Monday, with a small north-northwest swell arriving Tuesday into
midweek. A return to summertime/flat conditions is likely later
this week through next weekend.
Surf along east-facing shores should trend up later this week as
the trades become established locally and upstream across the
eastern Pacific.
&&
.HFO WATCHES/WARNINGS/ADVISORIES...
High Surf Advisory until 6 PM HST Monday for south facing shores
of Niihau, Kauai, Oahu, Molokai, Maui, Kahoolawe and Big Island.
Small Craft Advisory until 6 AM HST Tuesday for Maalaea Bay-
Pailolo Channel-Alenuihaha Channel-Big Island Leeward Waters-Big
Island Southeast Waters.
&&
$$
DISCUSSION...Foster
AVIATION...TS
MARINE...JVC
Bulletins, Forecasts and Observations are courtesy of Honolulu National Weather Service Forecast Office